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Determine initial wxSpinCtrlDouble precision

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For native wxGTK implementation default spin control precision is derived
from the precision of the increment value. Fot the sake of consistency the
same should be done in the generic implementation.

Closes #18764.
This commit is contained in:
Artur Wieczorek
2020-05-18 18:52:41 +02:00
parent a2a3897124
commit c963c60a0f
2 changed files with 15 additions and 1 deletions
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14
src/generic/spinctlg.cpp
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@@ -673,6 +673,8 @@ wxString wxSpinCtrl::DoValueToText(double val)
// wxSpinCtrlDouble
//-----------------------------------------------------------------------------
#define SPINCTRLDBL_MAX_DIGITS 20
wxIMPLEMENT_DYNAMIC_CLASS(wxSpinCtrlDouble, wxSpinCtrlGenericBase);
void wxSpinCtrlDouble::DoSendEvent()
@@ -696,7 +698,7 @@ wxString wxSpinCtrlDouble::DoValueToText(double val)
void wxSpinCtrlDouble::SetDigits(unsigned digits)
{
wxCHECK_RET( digits <= 20, "too many digits for wxSpinCtrlDouble" );
wxCHECK_RET( digits <= SPINCTRLDBL_MAX_DIGITS, "too many digits for wxSpinCtrlDouble" );
if ( digits == m_digits )
return;
@@ -708,6 +710,16 @@ void wxSpinCtrlDouble::SetDigits(unsigned digits)
DoSetValue(m_value, SendEvent_None);
}
void wxSpinCtrlDouble::DetermineDigits(double inc)
{
inc = fabs(inc);
if ( inc > 0.0 && inc < 1.0 )
{
m_digits = wxMin(SPINCTRLDBL_MAX_DIGITS, -static_cast<int>(floor(log10(inc))));
m_format.Printf("%%0.%ulf", m_digits);
}
}
#endif // wxUSE_SPINBTN
#endif // !wxPort-with-native-spinctrl